PLESroSATTRID^]. 227 



The following specimens may indicate larger individuals of 

 this species. 



2444. The centrum of a later cervical vertebra ; from Cuckfield. 



{Fig.) Figured in Harwell's ' Fossils of Tilgate Forest,' pi. ix. 



fig. 4. Mantell Collection. 



26000. A nearly similar specimen ; from the Wealden. 



Dixon Collection. Purchased, 1851. 



R. 1311. A tooth in matrix, provisionally referred to this species ; 

 from Cuckfield. Mantell Collection. 



Cimoliosaurus, sp. 



Known only by the undermentioned specimen. 

 Hab. Europe (England). 



21974. A small left propodial bone, wanting the distal extremity ; 

 from the Purbeck of S wanage, Dorsetshire. In its strongly 

 developed trochanter this specimen closely resembles the 

 humerus of C. haasti, on which ground it is provisionally 

 placed in the present group. It may belong to the pre- 

 ceding species. Purchased, 1848. 



Cimoliosaurus portlandicus (Owen x ). 



Syn. Pliosaurus portlandicus, Owen 2 . 



(?) Cimoliosaurus biangulatus, Cope 3 . 

 (?) Cimoliosaurus triangulatus, Cope 4 . 

 Plesiosaurus winspitensis, Seeley 5 . 

 Plesiosaurus carinatus, Phillips °. 

 Plesiosaurus phittip&i, Sauvage 7 . 



Of medium size. Centra of cervical vertebra) moderately elon- 

 gated in the middle region, and shorter posteriorly, with their ter- 

 minal faces somewhat cupped, having a distinct median pit, the 

 lateral surfaces somewhat depressed, the haemal foramina separated 



1 Reptilia of Kimeridge Clay (Mon. Pal. Soc), pt. iii. p. 8 (18G9). — Plwsaurus. 



2 Loc. cit. 



B Trans. Amer. Phil. Soc. vol. xiv. pt. i., advance separato copy, p. 56 (18G9), 

 cancelled in subsequent issue (1870). 

 4 Ibid. p. 42, errorim. 

 6 Ann. Mag. Nat. Hist. ser. 4, vol. viii. p. 185 (1871). 



6 Geology of Oxford, p. 374 (1871). — Preoccupied by Cuvier, see p. 1(58. 



7 Ann. Sci. Nat., Zool. ser. 6, vol. viii. art. 6, p. 21 (1871). Also indepen- 

 dently by Whidborne in Quart. Journ. Geol. Soc. vol. xxxvii., tabic lacing p. 480 

 (1881). 



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